Liver

Anatomy and Physiology

What structures can be used to located the dome of the liver?

Hepatic veins

What portion of the liver is partially covered by Glisson capsule?

Porta hepatis

The portal triad contains

A portal vein, hepatic artery and a bile duct

If the right lobe of the liver extends past the lower pole of the right kidney, hepatomegaly should be considered and __________ should be closely evaluated for changes

Liver echotexture

_______ courses within the right segmental fissure which divides the right lobe into A and P segments.

RHV

Lateral LLL is located between the…

Ligamentum teres and the spleen

Venous drainage of the caudate lobe occurs through what vessel?

Emissary veins

The distal papillary process of the liver is a rounded prominence on the anteroinferior aspect of the

Caudate lobe

Which hepatic ligament prevents free fluid from moving from Morison pouch to subphrenic space?

Coronary

The inferior margin of what ligament contains the ligamentum teres?

Falciform

Which hepatic ligament contains the remnant of the umbilical vein that has the potential to recanalize with Portal HTN?

Ligamentum teres

Rex-Cantlie line is an imaginary line that extends from the _______ in the liver

GB fossa to IVC

Liver is divided into 4 segments by the longitudinal course of the

Hepatic veins

The common hepatic artery becomes the proper hepatic artery after the origin of the

Gastroduodenal artery

The cystic artery normally branches from the

Right hepatic artery

In a normal liver the ______ increases w/ digestion but it is unchanged post-prandially in patients with cirrhosis

Resistive index

>20% change in PV diameter with deep inspiration indicates

Normal flow

What vessel joins the splenic vein posterior to the neck of the pancreas to from the MPV

SMV

What’s the most common variation in hepatic vein anatomy?

Accessory RHV

Why is the flow in HVs triphasic?

Because of the motion of the right atrium

Isolated elevation of AST is most suggestive of

Myocardial infarction

Increased GGTP and Increased ALP =

Biliary obstruction

Increased GGTP and Increased ALT =

Hepatocellular disease

Increased prothrombin time means

Pt has increased risk of hemorrhage

AFP levels are monitored in patients with

All of the above

______ approach with deep inspiration will provide the best views of the dome of the liver in most patients

Subcostal

What separates the Rt and Lt lobes?

Main lobar fissure

What vein divides the right lobe into Anterior and Posterior segments?

RHV

What vein divides the left lobe into medial and lateral segments?

LHV

What medially borders the medial left lobe?

MHV

What laterally borders the medial left lobe?

Falciform ligament and ligamentum teres

What anteriorly borders the caudate lobe?

Ligamentum venosum

What posteriorly borders the caudate lobe?

IVC

What inferiorly borders the caudate lobe?

MPV

What’s another name for the Round Ligament?

Ligamentum Teres

What is a remnant of the ductus venosus from fetal circulation?

Ligamentum venosum